[GRASS-SVN] r71785 - grass/trunk/lib/vector/diglib

[svn_grass at osgeo.org]

Author: mmetz
Date: 2017-11-19 12:47:14 -0800 (Sun, 19 Nov 2017)
New Revision: 71785

Modified:
   grass/trunk/lib/vector/diglib/struct_alloc.c
Log:
diglib: reduce calls to G_realloc()

Modified: grass/trunk/lib/vector/diglib/struct_alloc.c
===================================================================
--- grass/trunk/lib/vector/diglib/struct_alloc.c	2017-11-19 20:46:40 UTC (rev 71784)
+++ grass/trunk/lib/vector/diglib/struct_alloc.c	2017-11-19 20:47:14 UTC (rev 71785)
@@ -73,8 +73,11 @@
 
     G_debug(5, "dig_node_alloc_line(): add = %d", add);
 
-    num = node->n_lines + add;
+    if (node->n_lines + add <= node->alloc_lines)
+	return 0;
 
+    num = node->alloc_lines + add;
+
     p = G_realloc(node->lines, num * sizeof(plus_t));
     if (p == NULL)
         return -1;